Tobacco pipe



June l0, 1930. E. c. SASSER 1,763,185

TOBACCO PIPE Filed June 23, 1928 In ueni'or:

Edwar: 61S mar, 39 fi Patented June 10, 1930 UNITED STA EDWARD o. SASSER, OF WASHINGTON, jar-seems or casement ToBAoco has Application filed June 23,

My invention relates to new and useful improvements in tobacco pipes and has for an object to provide a pipe that will permit the smoke to be cooled before it passes through the stem to the mouth of the user.

Still another object of the invention is to provide a tobacco pipe, wherein a hollow plug forms the bottom of the bowl, which plug is to be of extremely thin metal, and so constructed that partof the smoke will pass around the same, to be thereby cooled before entering the mouth of the user.

Still another object of the invention is to provide a tobacco pipe having a detachable plug that forms the bottom of the bowl of the pipe, which plug has an upstanding portion which is imperforate, but whose greatest diameter is just appreciably smaller than the inner diameter of the bowl, so that the smoke may pass around the upstanding portion of the plug and will then be drawn through the stem ofthe pipe.

Still another object is to provide a plug wherein the upper portion, although slightly less than the inner diameter of the bowl, is formed with a cutting edge, so that when the plug is removed to be cleaned and afterwards replaced, if there is any tar about the inner surface of the. pipe, the cutting edge will cut its way into the same and always form, a peripheral passage for the smoke so that the same may be readily drawn into the stem.- Still another object of the invention is to provide a hollow plug having an upwardly extending shank or hub. that is slightly tapered and provided with a cutting edge. This hollow plug is of thin metal so that the air outside of the pipe may easily flow up into this hollow hub, or in other words the heat 49 may be defused and appreciably cool the smoke for the user.

Still another object of the invention is to provide a plug with an upwardly extending hollow shank, the plug having a cutting edge open at its bottom but imperforate at its top and ofsuch size that the smoke may be drawn evenly around the shank of the plug and into the stem of the pipe.

Still another object of the invention is t provide a pipe with a quickly removable 1928. Serial No. 287,784.

plug,- which plug may then be quickly cleaned and when again inserted will .cut a peripherial passage about the plug in the pipe bowl if the inside of the bowl has become coated from use. lVith these and other objects in View, the invention consists in certain new and novel arrangements and combination of parts as will behereinafter more fully described and pointed out in the claims.

Referring now to the drawings showing a preferred embodiment and a slight modifica- Fig. 1 is a top plan view of the tobacco P P- 7 F ig. 2 is a longitudinal sectional view thereof, V

Fig. 3 is a cross section taken on line 3'3 of Fig. 2, Fig. & is a top plan view of the plug, '7

Fig. 5 is a side elevation of the same,

Fig. 6 is a bottom plan View thereof,

Fig. 7 is a perspective of the plug, Fig. 8 is a bottom plan View of a. plug showing a slightly modified form. v

Referring now more specifically to the several views, the pipe is shown as comprising a bowl 1 with a short usual stub stem 2, to which the regular stem 3 is to be joined or attached. The bowl is provided with a bore 4: that extends completely through the same while apa-ssage-way 5 is shown leading from the bowl and the stub stem which passage way of course registers with a passage-way 6 in the joined stem 3. The lower edge of the bore 4 is internally threaded as at 7 for the r'eception'of a detachable fastening or plug 8 which plug and its arrangement forms the gist of the invention.

. This plug 8 is preferably made of aluminum and comprises the lower rim. 9 and the body 10 which is externally threaded sothat the plug may be tightly screwed up within the bore of the pipe while the rim 9 will form a seal with the lower surface of the pipe bowl as will be readily understood.

This plug 8 is provided with the; hollow central chamber 11 and it will be understood that in the drawing the thickness of the Walls is exaggerated for the sake of clearness.

The chamber is closed at its top by the wall 12 and in actual practice this wall is not over .005 of an inch thick. The side walls 13 of the chamber 11, which merge with what I term the body 10, are slightly thicker, but it will be understood that this wall is exaggerated also in the drawings for the sake of clearness.

The outer surface of the wall or side 13 tapers inwardly as will be seen in the several views and extends upwardly above the level of the top wall 12 while a knife edge 14 is formed around the periphery of the plug.

It will also be noticed that the diameter of the peripherial cutting edge is several thousandths of an inch smaller than the internal diameter of the bore of the bowl so that when the pipe is used, the smoke may be drawn down between the peripherial upper edge of the plug and the edge of the bowl, and down through the passage way 5 and to the mouth of the smoker.

By having the walls of the plug, that is what might be termed the hub of the plug or,

v the shank of the plug tapering inwardly,

there is a greater distance between the said huh and the walls of the bowl near the base of the hub than there is at the top of the plug. Referring for the moment to Fig. 6, it will be seen that at the bottom of the plug there is shown four small recesses 15, such as usually are applied to fittings, where it is desired to use a spanner wrench. By providing these little recesses, when it is desired to remove the plug, a five cent piece or twenty-five cent piece may be fitted within these recesses and the plug turned, the coins, of course being substituted for a spanner wrench.

In Fig. 8 a slight modification is shown, as instead of having recesses 15, small lugs 16 are provided and any suitable object may be placed to bear against the lugs and turned to loosen or tighten the plug.

Now as to the many advantages of a plug of this kind,in the first place, it will be seen that by providing a hollow chamber 11 directly in the bottom of the pipe, the heat from the burning tobacco will be more ,3 readily dissipated than were this plug solid as the air within the room or wherever the pipe is smoked, will circulate freely up within the chamber and thus cool the plug and lower the temperature of the smoke 1: before reaching the user.

The upper wall 12 and the side walls 13 being of thin metal, the air will cool them and the smoke in passing around the hub or shank of the plug, will also be cooled before passing into the passage-way in the stem.

Therefore, the plug provides for a cooler smoke than is obtainable in many pipes in use today.

Now the cutting edge 14: is of importance, in that pipes after being in use for a certain length of time, begin to coat or cake, and this cutting edge will always cut out the tar or cake when the plug is being inserted, that is, it will cut out the tar as far up into the bowl as the cutting edge extends and will leave a clearance between the cutting edge of the plug, and the inner walls of the pipe. Thus if the pipe starts to clog between the plug and walls of the bowl, the plug may be turned a couple of times, but not necessarily removed and the turning will cut away any of the material that is causing the clogging.

Also the plug may be quickly removed and readily wiped oil or cleaned, so that none of the juices will pass up into the mouth of the smoker.

Again, the tobacco will burn more evenly than in an ordinary pipe, as the smoke is drawn evenly down the sides of the bowl, rather than right through the center.

Finally, by having the plug imperforate, there are no small holes to clog up as in a number of the pipes in use today.

In Figs. 2 and 3, I have shown a small metal member or blade 17 that is inserted within the registering passage ways 5 and 6 to also catch any of the tobacco shreads or the tobacco tar, but this member forms the subject matter of a companion application that I have filed of even date herewith.

From the foregoing, it will be seen that I have provided a pipe wherein the smoke will be cooled and drawn evenly into the mouth of the user.

Also the plug may be readily cleaned, as there are no small perforations to be cleaned out nor are there any pockets that are hard to get at and clean as with a number of constructions of the same general type, and the cutting edge will always provide a passageway for the smoke to pass down between the cutting edge of the plug and the side walls of the bowl.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is l. A tobacco pipe comprising a bowl having a bore extending completely therethrough, a stem joined with said bowl having a smoke passage communicating with said bowl, a removable fitting comprising a base plate having an outer wall forming a tight lit with the bottom of the bowl, said fitting also having a hollow hub open on its under surface and imperforate on its top surface, said hub being slightly less in diameter than the inner diameter of the bowl, whereby the smoke may be drawn down past the peripherial edge of said hub and into the stem of said pipe.

2. A tobacco pipe comprising a bowl having a bore extending completely therethrough, a removable fitting adapted to be threaded into the bottom of the bore, the fitting comprising an upwardly extending holllfi low imperforate hub, said hub having tapering walls and the greatest diameter of the hub being slightly less than the internal diameter of the bore of the bowl for the admission of smoke to the stem, the hollow hub permitting the air to cool the fitting and the smoke as it is drawn around the hub through the pipe stem.

3. A tobacco pipe comprising a bowl having a bore extending completely therethrough, a stem joined with said bowl having a smoke passage communicating with said bowl, a hollow plug fitting within the bore and said plug being closed on its upper surface, the peripherial edge of the plug on its upper surface being in the form of a knife edge to thereby cut a passage way for itself when being inserted in the bowl after the bowl becomes coated from use.

i. A tobacco pipe comprising a bowl, stem and connecting passage ways, a false bottom comprising a plug to seal the bottom of the bowl, said plug provided with an upwardly extending hollow shank, the walls of which taper, said shank being imperforate, the diameter of the shank being slightly less than the inner diameter of the bowl, so that the smoke may be drawn past the same, the bottom of the plug provided with means adapt-- ed to receive an article to tighten and loosen the plug with relation to the bowl.

A tobacco pipe comprising a bowl hav ing a bore there-through and a plug, said plug adapted to fit within the bowl, said plug being formed of relatively thin metal and provided with a chamber closed on its top, the diameter of the chamber at its upper edge being slightly less than the inner diameter of the bowl and the upper peripherial edge of the chamber being knife like in form.

6. A plug to form the bot-tom of a pipe bowl comprising a body portion externally threaded, a flange extending beyond the body por tion, an upwardly extending shank integral with the body portion and the walls of said shank tapering, the said shank being hollow and merging with the body portion, the said shank being imperforate and the upper edge of the shank having a knife edge.

7. A tobacco pipe comprising a bowl, a plug to form the bottom wall of the bowl, said plug having a chamber leading in from its bottom, a knife edge extending above the top wall of the chamber and the side walls of the hub tapering inwardly, the lower portion of the plug being threaded and a flange at the lowermost edge of the plug.

8. A tobacco pipe comprising a bowl with a bore there-through and a plug adapted to be threaded within the bore, the plug being hollow and imperforate and the diameter of the upper edge of the plug being less than the diameter of the bowl, and means formed at the bottom of the plug for tightening and untightening the plug in the bowl.

9. A tobacco pipe, the bowl of which is provlded with a bore there-through, a removable plug for sealmg the bottom of the bowl, said plug being of relatively thin metal and pro- EDXVARD C. SASSER. 

